Home / 1,284,705.20-1,925,056.20-485,550.80

Finding the Fourth Proportional to 1,284,705.20, 1,925,056.20 and 485,550.80

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Solution

The fourth proportional to 1,284,705.20, 1,925,056.20 and 485,550.80 is: 727,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,705.20 : 1,925,056.20 = 485,550.80 : x
  2. Step 2: Convert to fraction form
    1,284,705.20/1,925,056.20 = 485,550.80/x
  3. Step 3: Cross multiply
    1,284,705.20x = 1,925,056.20 × 485,550.80
  4. Step 4: Simplify right side
    1,284,705.20x = 934,712,577,954.96
  5. Step 5: Solve for x
    x = 934,712,577,954.96/1,284,705.20
  6. Step 6: Final answer
    x = 727,569.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.